Study of the discourse mechanism of Sun Li's novels 并列题名：Study of the discourse mechanism of Sun Li's novels Study on the dynamic mechanism of green development Study of the structural patterns of western novels Study of the postmodern hyperreality in Don DeLillo's novels Study on the microeconomic mechanism of the regional development Study on the long term mechanism of China's online governance Study of the original content of Gulong's novels Study on the subject service mechanism of university library Study of the classical mechanism of ancient Chinese literature